U.S. News & World Report's ranking editor Avery Comarow demystifies and discusses our rankings process in a breakout session today. Follow along here on the live blog, on Twitter using hashtag #USNHoTRankings, or by keeping an eye on Comarow himself (@RankingsGuy)

Dr. Tom Frieden, director of the U.S. Centers for Disease Control and Prevention, takes the stage to close the Hospital of Tomorrow forum with a keynote about public health. "At the center of what hospitals have to do is provide excellent, hospital-based clinical care," he says. "And there are many aspects of that care that are changing."